Five Indian Navy personnel were killed and three injured critically in a major tragedy during a Naval exercise in the Bay of Bengal on Friday.

The accident took place on board Indian Navy's latest acquisition, INS Jalashwa, while the ship was taking part in the Naval exercises between Visakhapatnam [Images] and Port Blair, the Indian Navy spokesman said.

It was not immediately known how the fatality took place.

INS Jalashwa, a ship landing dock previously called USS Trenton, was acquired from the US Navy just a month back.

The Navy rushed its medical ships to treat the injured and to bring back the serious cases to Port Blair.